maybe you guys can help?
#1
11-16-2009, 09:57 PM
maybe you guys can help?
alright we've got this 99 powerstroke. its got this weird problem that always comes back
it will run fine when its cold and then when it warms up it just falls on its face. at first it threw injectors 1-7 high to low side short 6-8 high to low short. we changed the valve cover gaskets, the icp put new harness plugs in. then we swapped out injector number 8. and are in the process of switching the orings. after we switched the icp and the gaskets it seemed to run fine. ran it for about an hour, drove it around and then it started to fall on its face again. so we were told maybe the orings were junk?
but the last time it came in the only code it threw was 1211 which is the icp above/below desired? honestly we've been chasing this ghost for so long now
i should be able to answer any questions please HELP
if anyone can help it would be greatly appreciated.
Tim
it will run fine when its cold and then when it warms up it just falls on its face. at first it threw injectors 1-7 high to low side short 6-8 high to low short. we changed the valve cover gaskets, the icp put new harness plugs in. then we swapped out injector number 8. and are in the process of switching the orings. after we switched the icp and the gaskets it seemed to run fine. ran it for about an hour, drove it around and then it started to fall on its face again. so we were told maybe the orings were junk?
but the last time it came in the only code it threw was 1211 which is the icp above/below desired? honestly we've been chasing this ghost for so long nowi should be able to answer any questions please HELP
if anyone can help it would be greatly appreciated.
Tim
#2
11-18-2009, 02:12 AM
Diesel Bomber
alright we've got this 99 powerstroke. its got this weird problem that always comes back
it will run fine when its cold and then when it warms up it just falls on its face. at first it threw injectors 1-7 high to low side short 6-8 high to low short. we changed the valve cover gaskets, the icp put new harness plugs in. then we swapped out injector number 8. and are in the process of switching the orings. after we switched the icp and the gaskets it seemed to run fine. ran it for about an hour, drove it around and then it started to fall on its face again. so we were told maybe the orings were junk?
but the last time it came in the only code it threw was 1211 which is the icp above/below desired? honestly we've been chasing this ghost for so long now
i should be able to answer any questions please HELP
if anyone can help it would be greatly appreciated.
Tim
it will run fine when its cold and then when it warms up it just falls on its face. at first it threw injectors 1-7 high to low side short 6-8 high to low short. we changed the valve cover gaskets, the icp put new harness plugs in. then we swapped out injector number 8. and are in the process of switching the orings. after we switched the icp and the gaskets it seemed to run fine. ran it for about an hour, drove it around and then it started to fall on its face again. so we were told maybe the orings were junk?
but the last time it came in the only code it threw was 1211 which is the icp above/below desired? honestly we've been chasing this ghost for so long nowi should be able to answer any questions please HELP
if anyone can help it would be greatly appreciated.
Tim
Check your LPO pressure. It should be 40-60 cold and above 30 when warm...
Check your HPO pressures and duty cycles. Sounds like you have some kind of scanner, it should be able to run these tests and data log.
Do a cylinder contrubtion test and an injector Buzz test. Also do a full KOER (Key On Engine Running) test.
It sounds to me it may be as symple as a miss functioning EBPV...
Thread
Thread Starter
Forum
Replies
Last Post
Captainstubs1
Diesel Bombers Introduction
9
06-16-2015 03:50 PM
xj_crawler
12 Valve 2nd Gen Dodge Cummins 94-98
12
11-20-2014 10:17 PM
